For UK & EU Amazon sellers · Built by an Amazon seller
Know your real profit. Get back what Amazon owes you. Keep all of it.
SellerToolKit shows your real profit on every order, raises your reimbursement cases with Amazon for you with no commission, and reprices without racing to the bottom.
Three jobs, one tool
What sellers use SellerToolKit for
Reimbursements, raised for you
STK finds lost, damaged and unreturned stock and raises the case with Amazon from your own Seller Central. Recovery services keep up to 25%. We keep nothing.
How it works →
Real profit, per order
Every fee, VAT on sales and on fees, and cost of goods at what you paid for each batch, so you know which products to reorder and which to drop.
See your real profit →
Repricing with a floor
Rules you set, with price, profit, ROI or margin floors per SKU. Win the Buy Box without giving the margin away.
How the repricer works →
Why we built it
Amazon tells you revenue. It doesn't tell you what you kept.
Revenue leaves out your cost of goods, the fees that change with the season, the VAT on Amazon's own fees, and the stock Amazon lost and never paid you for. Most sellers rebuild the real figure in a spreadsheet, or don't find out until the accountant does.
SellerToolKit was built by an Amazon seller who needed those numbers. It works them out from your own Amazon data, every order, and it goes after the money Amazon owes you while it's at it.
Everything in one place
Your Amazon business, without the spreadsheet
- Profit, ROI and margin per order, SKU and marketplace
- VAT for UK and EU sellers, including VAT on fees
- Reimbursement cases raised for you, no commission
- Stock tracking and FBA reconciliation
- Optional rule-based repricer with margin floors
- FBA and FBM

What sellers say
From sellers who use it
“What an absolute GAME CHANGER this STK software is!!!”
“STK is the best P&L tool I worked with. Can't recommend it highly enough!”
“Best piece of software I have… Absolutely pays for itself in reimbursements I didn't know were due.”
“I've recently moved from [another repricer] (had for over a year) as [I] got bought in to the 'maximise profits' promise and realise now how much of a fools gold this is. My only regret is not moving sooner.”
Your free trial
See it on your own account, free for 14 days
Connect Amazon, and STK pulls in your orders, fees, stock and reimbursements. No card, nothing charged. Then from £32.99 a month, set by your own order volume.
Questions sellers ask
Is it safe to connect my Amazon account?
You connect through Amazon's own authorisation page, using Amazon's official Selling Partner API. We never see your Amazon password.
Which marketplaces do you support?
UK, EU and US marketplaces. Reimbursement cases are raised on UK and EU marketplaces; Amazon has changed its reimbursement help pages for some US accounts.
Do you take a commission on reimbursements?
No. Reimbursements are paid by Amazon into your Amazon account, and STK takes nothing.
Do I need a card for the trial?
No. Nothing is charged during the 14 days and no card is taken.
If I cancel, do I lose my data?
We keep your data for 8 days after you cancel, so you can come back without starting again.
P.S. Every week without your real numbers is another week of reordering on a guess, and another week of lost stock creeping towards Amazon's claim deadline. The trial is free, takes two minutes, and shows you both.